最小生成树问题的Kruscal算法的一种实现方法

本文讨论了针对带权连通图的一种可行性存储结构———单链表结构的构造问题 ,并研究了在该结构上构造最小生成树的算法 .算法已在机器上得到了实现     

Persuasive impact of loss and gain frames on intentions to exercise: A test of six moderators

The current study situated loss/gain-framing research in the extended parallel process model and tested whether two message features (dose, efficacy appeals) and four individual difference variables (walking self-efficacy, grit, consideration of future consequences, health information overload (HIO)) moderated the impact of message framing on intentions to engage in physical activity. Adults (N?=?341, M_age?=?38.09, SD?=?10.94) were randomly assigned to one of eight message conditions advocating exercise behavior. All four individual difference variables significantly moderated framing effects such that gain-framed messages were more effective for individuals with lower walking self-efficacy, grit, and consideration of future consequences and loss-framed messages were significantly more effective for individuals with higher walking self-efficacy, grit, consideration of future consequences, and for those with lower HIO.     

一类积分算子在加权Campanato空间的有界性(英文)

本文证明了下述结果:在适当条件下,若f∈ε_(?)～(?)(?),则g(f)(x)(s(f)(x),μ(f)(x))=∞,a,e.x∈R～(?)或g(f)(x)(s(f)(x),g_(?)～(?)(f)(x),μ(f)(x))<∞,a,e.x∈R～(?),在后一种情形,我们有g(f)(s(f),g_(?)～(?)(f),μ(f))∈ε_(?)～(?)(?)且‖g(f)‖(?)(‖s(f)(?)‖g_λ～(?)(f)‖(?)‖μ(f)‖(?))≤c‖f‖(?)其中C是不赖于f(x)的常数.     

体育教育专业体操普修课成绩评价的调查结果与评价体系

采用调查法,对北京体育大学、沈阳体育学院、西安体育学院、成都体育学院、武汉体育学院、等11所体育、师范院校体育教育专业的体操普修课程教学大纲与教学计划进行研究与分析。结果表明,体操普修课成绩评价不利于充分调动学生学习的积极性,忽视学生基本技能的培养,评价内容、方法划一,缺乏弹性,缺少顾及学生个体差异,评价重视结果、忽视过程;未能体现"以学生发展为本"的指导思想等主要问题。在对体育教育专业体操普修课学生成绩评价现状进行分析的基础上,构建了体操普修课成绩评价体系。     

The Effects of Message Framing and Visual Image on Persuasion

This study examined the joint effects of message framing (gain vs. loss) and visual image (image vs. no image) on persuasion as it related to the use of dental floss and the use of sunscreen (N = 252). For both topics, the results revealed a Frame × Image interaction effect on fear. The interaction was such that the presence (vs. absence) of an image produced more fear in the loss-framed conditions. The corresponding results for gain-framed messages were inconsistent. Covariance analyses showed that fear mediated the effect of the interaction on persuasion, whereas dominant cognitive response did not.

[Supplementary materials are available for this article. Go to the publisher's online edition of Communication Quarterly for the following free supplemental resources: sunscreen and flossing messages of gain-visual and loss-visual.]     

转动单星星风与角动量损失及演化的研究

在转动单星旋转椭球体模型下提出非均匀的星风与角动量损失理论,数值模拟两种损失在转动单星表面的分布以及两种损失影响下转动单星的演化。     

我国高校体育无形资产流失成因及保护对策研究

高校体育无形资产是高校资产的重要组成部分,有效开发和利用高校体育无形资产,不但能为学校赢得一定合法经济收益,同时也会产生良好的社会效益。但是由于多方面的原因,我国高校体育无形资产保护工作十分薄弱,导致高校体育无形资产的大量流失,为此必须采取措施,加强对高校体育无形资产的保护,充分发挥高校体育无形资产的社会效益和经济效益。     

第18届世界杯足球赛亚洲球队运动员年龄、体重、身高特征分析

采用文献资料法、数理统计法、逻辑分析法,对第18届世界杯足球赛亚洲球队与前八强、前四强运动员的年龄、身高、体重3项指标进行统计分析.结果表明:亚洲球队运动员年龄、身高、体重与世界强队存在显著性差异.在强对抗的形势下,很难正常发挥技、战及心理水平.亚洲球队要缩小与世界强队的差距,应在选材、科学训练、外援引进等方面向足球先进国家学习.     

北京市商业体育俱乐部消费行为研究

本研究运用文献研究法、调查研究法和数理研究法,对北京市商业体育俱乐部的经营问题从微观经济学的角度出发,从经营者和消费者两个层面进行了系统分析,得出了比较客观的结论。     

举重竞赛中运动员称重后到出场前阶段能量补充的探讨

通过文献综述法和专家访谈法就举重运动员称体重后到赛前能量补充进行探讨分析。提出通过合理安排赛前营养的摄入来提高运动员的比赛能力和水平。